Antoinette Jelgersma (Oosterbeek, December 18, 1955) is a Dutch actress.
Jelgersma graduated from the Toneelschool Arnhem in 1984. She played at the Publiekstheater, Sater, Persona, Carrousel, the RO Theater and the Onafhankelijk Toneel. Since 1997 she is permanently attached to the Nationale Toneel, where she can be seen regularly.
Apart from on stage, she also plays in films and television series. In the TV series Beatrix, Oranje under fire from 2012, she played the role of Queen Juliana.
Jelgersma also plays the role of chief commissioner Marlies Kamphuis in the TV series Flikken Maastricht, in which she plays a leading role since the thirteenth season. Jelgersma appeared earlier in the series, at that time as guest star.
